Police have identified a man who died Wednesday in the custody of Oklahoma City police.

Oklahoma City police said they responded to a residential panic alarm in the 1400 block of Northwest 99th Street on Wednesday night while at the same time Clifton Armstrong, 38, was calling 911 to and saying people in his house were trying to kill him.

Two officers arrived and determined Armstrong, about 5 feet 8 inches tall and 200 pounds, was extremely delusional, possibly suffering from mental illness, and, according to authorities, in need of emergency detention for treatment. Investigators said the man became physically uncooperative and stripped off his clothes after exiting the home.

Officers said they as well as family members tried to calm and restrain the subject on the ground for his safety. Two additional officers arrived to assist.

Handcuffs and maximal restraints were used on the man to prevent injury, according to police. The man stopped breathing a short time later and paramedics were called to the scene.

He was taken to a local hospital where he was later pronounced dead, investigators said.

OCPD homicide detectives and crime scene investigators responded to investigate the incident. All of the involved officers, J. Dutton, G. Franklin, M. Tabaia and D. Holtzclaw were placed on administrative leave pending the outcome of the criminal and administrative investigations. All of the officers had between one year and 18 months of service.

The medical examiner will determine the man's cause and manner of death.